Gate.



E L. CANON.

GATE

APPLFCATION FILED NOV 15. |916.

Patented; July 3, 191?.

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l SATL APPLICATION FILED NOV. I6, 1916.

Patented July 3, 191?.

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EDWARD L. CANON, OF .QUiTiviAN GEORGIA, AssIGNOR OF ONE-HALF rio THOMASE. JOHNSON, Os animi/IAN, GEORGIA.

GATE.

Specification of Letters Patent.

Patented July 3, 191W.

Application filed November 16, 1916. Serial No. 131,705.

T0 all whom t may concern:

Be it known that I, EDWARD L. CANON, a citizen of the United States,residing at Quitman, in the county of Brooks and State of Georgia, haveinvented certain new and useful Improvements in Gates, of which thefollowing is a specification.

This invention relates to a. gate `and more particularly to a gate whichmay be employed `as a closure for the gate opening in fences upon farmsand the like, although the construction of the gate is suoli that 1t maybe employed for this purpose in connectionwith other openings, if founddesirable.

The primary object of the invention is to provide a gate of thischaracter in which a barrier' for closing the gate opening is mountedfor vertical sliding moyement within guide posts, and is supported insuch position by mechanism connected therewith for holding the barrier`in active position, and having connected therewith a platform arrangedwithin the gateway to be depressed under the weight of the vehicle `orthe like to cause the barrier to be moved to an inactive position, andretained in suoli position until the vehicle passes through the gateopening and from the platform, at which time the barrier will againassume its normal or active position;

Another object of the invention is to provide a gate of this characterin which the mechanism for supporting and normally holding the barrierin an active position to close the gate opening may be arranged. in apit between the gate posts, and in which the gate is received when movedto `an inactive position by the-weight of a load upon said platformwhich serves as a coverfor said pit, thus placing said mechanism in anout-of-the-way position and .protecting the same from the weather.

A further object `of fthe invention is to provide the gate with abarrier, the frame of which extends within guideways in ythe guide postsand has hingedlyconnected therewith cross strips also having hingedconnection with the weight-controlled bar rier-earrying frames mountedfor tilting 'movement within the pit and supporting the load operatedplatform, through the operation of which the barrier-carrying framesmaybe tilted and the barrier moved through a slot in said platform intothe pit and retained therein until the load has been moved from theplatform.

A still further object of the invention is to provide thebarrier-carrying frames with a barrier in which a frame forming a partlof the same and having its side rails received in guideways in theguide posts has one side rail thereof so constructed that when thebarrier is in an active position for closing the gate opening, the saidrail may Vbe lengaged bythe locking head on va latch arranged within anopening in one of the guide posts and engageable with the rail to lockthe barrier in an active position.

lVith these and other objects in view, the invention resides in thenovel combination ,and arrangement of parts which will be hereinafterdescribed and particularly pointed out in the claim. i The preferredembodiment of the invention has been illustrated in the accoinpanyingdrawings, although no restriction is necessarily made to the precisedetails of construction therein shown, as changes, al-

terations and modifications within the sco e of the claim may beresorted to when esired.

Figure 1 is a perspective view showing the improved gate with partsbroken away arranged in a gateway and closing the gate opening in afence.

Fig. 2 is a top plan view of the gate with .the platform removed.

Fig. 3 is a longitudinal sectional view on the line 3 3 of Fig. 2, thebarrier and opei'ating mechanism connected therewith begate C arrangedwithin a pit D in the roadway passing between the gate posts E. The pitD is preferably lined with cement, and

has arranged in the bottom thereof a siphon` 7 for draining purposes,and has formed therein adjacent each end a pair ofspaced supports 3 uponwhich are arranged plates 9 having extending transversely thereofbearing ribs 10 triangular in shape in cross-section to provide each ribwith a knife edge 11.

A pair of barrier-carrying frames 12 and 13, which are rectangular inshape to provide each frame with side bars 14 and end bars 15 and 16,are arranged within the pit D above the supports 8, and with the endbars 16 of the frames arranged in opposed relation, said frames havingconnected with the under faces of the side bars 14 adjacent the end bars15 bearings 17 having formed therein transversely extending openings 18,V-shaped in cross section and receiving therein the ribs 10, so that theframes 12 and 13 rest upon the knife edges 11 of the ribs and are freeto tilt thereon.

The tilting movement of the frames 12 and 13 upon the ribs 10 is limitedby the inclined walls of the openings 18, while lateral movement of theframes upon the supports is prevented by flanges 19 on the bearings 17engaging the inner ends of the ribs 10 above the plates 9. I

The end bars 18 of the barrier-carrying frames are substantiallyL-shaped in cross section with the vertically extending portions of thebars curved in opposite directions and provided at intervals throughouttheir length with elongated and longitudinally extending slots 20, thepurpose of which will hereinafter appear.

Extending transversely of each barriercarrying frame and mounted to turnin bearings 21 on the side bars thereof adjacent the bearings 17 is acrank shaft 22, the ends of which extend beyond the side bars 14 and arebent downwardly and outwardly to provide cranks 23. A platform carryingframe 24 is arranged within the pit D, and has secured to the under faceof the side rails 25 thereof bearings 26 having jaws 27 thereonreceiving therebetween the cranks 23 upon which the frame 24 rests, sothat as the frames 12 and V13 tilt on the ribs 10, the shafts 22 willenable the frame 24 to remain in a horizontal position.

The side bars 25 of the frame 24 have secured thereto verticallyextending guide posts 23 alincd with the gate posts E, and having formedin their confronting faces longitudinally extending grooves formingguideways 29 slidably receiving therein the side bars 30 of a barrierframe 31 having a top rail 32 and a bottom rail 33. The frame 31 hasarranged upon opposite sides thereof vertically extending strips 34, theupper ends of which are rolled to form eyes 35 having passedtherethrough the top rail 32, while the lower ends of the strips uponeach side of the frame are oppositely curved to form ingers 36 looselypassing through the slots 20 in the curved portions of the end bars 16to hingedly connect the strips therewith, so that when thebarrier-carrying frames are tilted to the position shown in' dottedlines in Fig. 3, the barrier will be slid downwardly and within the pitD. The lower rail of the barrier frame has mounted to turn thereon asleeve 37 tobe engaged by the end bars 16 when the barrier is in activeposition. Arranged within the pit D between the supports 8 are a pair ofbars 3S having hinged connection with the end walls of the pit andadjustably mounted between their ends in yokes 39 swingingly connectedwith the end bars 15 `of thebarrier-carrying frames and havingadjustablyV mounted thereon weights 40 normally serving tocounter-balance the weight of the platformcarrying frame and to hold thebarriercarrying frames in a tilted position in which the barrier 41formed bythe frame and strips 35 is held in a raised or active positionabove the platform-carrying frame 24.

A platform 42, by means of which when a load is placed thereon thebarrier-carrying frames may be tilted in the reverse direction againstthe inuence `of the weights 40 to move the barrier to an'inactiveposition within the pit D, is arranged upon the platform-carrying frame24, and comprises a pair of primary treads 43 partially supported uponthe ends of the frame 24 and fulcrumed on bearing flanges 44 on the endwalls of the pit and receiving therebetween supplemental treads 45arranged upon opposite sides ofthe guide posts 28, and between which andthe inner ends of the supplemental treads are arranged cross strips 46formingwithin the platform 42 a barrier receiving opening 47. vThesupplemental treads 45 are held against displacement upon the platformcarrying frame by fingers 48 engaging the cross strips 46.

Through the above described manner of constructing the platform 42 andmounting the frame thereof upon the cranks of the shafts 22, it will beseen that when the platform is depressed under the weight of a vehicleor the like, the primary'treads 43 tilt,

while the supplemental treads and the platform-carrying frame remain ina horizontal position under all conditions.

A latch 49 is pivotally mounted within an opening in onetof the guideposts 2S, and is provided with a locking head 50 extending within theguideway therein and engageable with notches 51 in one of the side barsY30 of the barrier frame to lock the barrier in a raised or activeposition, said latch being When the improved gate is arranged within aroadway, as shown in Fig. 1 of the drawing, it will 'be seen that avehicle or the like if driven upon the platform 40 will depress the sameand counterbalance the weights 40 and rock the barrier-carrying framesupon the supports 8 to move the barrier in a downward direction andwithin the pit D in which the barrier will be retained below theplatform 42 until the vehicle has passed through the guideway and leftthe platform, at which time the weights ll() will again counterbalancethe weight of the platform and frame thereof and tilt thebarriercarrying frames in the reverse direction to raise the barrier toits normal or active position above the platform 42 in which positionthe barrier closes the gate opening.

From the foregoing description, taken in connection with theaccompanying drawings, it is apparent that a weight-controlledloadoperated gate has been provided which is simple in construction,inexpensive of manufacture and thoroughly efficient in use.

Having thus described the invention, what is claimed as new, is:

A gate comprising a pair of frames mounted to tilt within a pit, avertically movable barrier interposed between said frames, pivoted crossstrips on said barrier having hinged connection with said frames wherebythe barrier may be raised and lowered thereby, yokes on said frames,pivoted and weighted bars adjustably mounted in said yokes to normallyhold said barrier in a raised position, a frame swingingly sup` portedon said pair of frames and having guide posts receiving the ends of thebarrier, supplemental treads on said frame operable under the influenceof a load to act in opposition to said bars, and primary treads mountedto tilt on said frame.

In testimony whereof I affix my signature in the presence of twowitnesses.

EDVARD L. CANON. Witnesses:

Doris KNIGHT, lV. R. KNIGHT.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

